Amazon Associate Plug-in 1.70 crashing WordPress

Updated the WordPress Amazon Associate Plug-in to 1.70 and it promptly crashed my WordPress. It prompted the following error when trying to access the WordPress platform

Fatal error: Call to undefined function wp_get_current_user() in /xxxxxx/wp-includes/capabilities.php on line 1039

Found a solution to the above fatal error caused by Amazon Associate Plug-in 1.70. Simply edit wp-includes/capabilities.php. Add in the following after the comments and before the first class definition.

require_once(‘pluggable.php’);

Save the file and access your WordPress. It should work!

If it does not work for you, simply move the Amazon Associate Plug-in (wordpress-amazon-associate) out of wp-content/plugins. You are effectively removing the problematic plugin.

Reference: [Plugin: WordPress-Amazon-Associate] Auto-update failure